EP0269740A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Process for processing silver halide color photographic material involving rapid development

Assignee: Konica Minolta Inc

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Filing: 1987-03-25

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Granted: —

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Expires: 2007-03-25

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Abstract

Abstract A process for color-developing silver halide color photographic material having a plurality of silver halide emulsion layers. Silver halide contained in said plurality of silver halide emulsion layers is substantially silver chlorobromide with the content of silver chloride in at least one of the layers being not less than 20 mol %, and the color developer to be used for color development contains a compound represented by general formula (1). This process enables color photographic images with a sufficient color density to be obtained by rapid development, and the color developer has excellent long- term preservability.

Inventors

👤 Kazuhiro Kobayashi
👤 Shigeharu Koboshi
👤 Masao Ishikawa
👤 Masayuki Kurematsu
👤 Yoko Matsushima

Bibliographic Details

Application Number —

Jurisdiction EP

Data Source google_patents

Last Synchronized 2026-11-10 01:59

CPC Classifications

G; G03; G03C; G03C7/00; G03C7/30; G03C7/407; G03C7/413

Claims Analysis

Total Claims: 3

Claim 1

Independent Claim 171 words

(1) In a method of processing a silver halide colour photographic light-sensitive material having a plurality of silver halide emulsion layers, comprising the steps of exposing imagewise to light and then processing in at least a colour developing step, said method characterized in that (1) the silver halide contained in said plurality of silver halide emulsion layers is substantially silver chlorobromide, (2) among said plurality of silver halide emulsion layers, at least one layer contains silver chlorobromide having a silver chloride content of not less than 20 mol%, and (3) a colour developer used in said colour developing step contains at least one kind of the compounds represented by the following Formula [I]: Formula [I] (wherein, R 1 and R 2 represent each a hydrogen atom, an alkyl group or an alkoxy group having 1 to 3 carbon atoms; provided that R 1 and R 2 are not hydrogen atoms at the same time and that R 1 and R 2 are allowed to couple together to complet e a ring.)

Claim 2

Dependent Claim 28 words

(2) The method of processing a silver halide colour photographic light-sensitive material as claimed in claim (1), wherein said silver chloride content is not less than 30 mol%.

Claim 3

Dependent Claim 51 words

(3) The method of processing a silver halide colour photographic light-sensitive material as claimed in claim (1) or (2), wherein said colour developer contains at least one kind of paraphenylenediamine type colour developing agents each each having at least one alkylsulfonamidoalkyl group on the benzene ring and/or an amino group thereof.

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